This process completely removes ZBrush from your computer.
1. In the ZPlugin menu, choose Web Deactivation and proceed with the license deactivation as explained in a section above. If you do not deactivate prior to un-installation, the un-installed machine will continue to count against your serial number and potentially prevent you from reactivating!
2. On Windows, use the Windows Control Panel uninstall utility and follow the steps. On Mac OS X, simply move the ZBrush folder and the Users/Public/Pixologic folder to the Trash.
3. Check the location where ZBrush was installed for extra files which haven’t been deleted by the installer. You can delete those folders if you do not intend to use ZBrush on this computer again.